<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>图片插入</title>
</head>
<body>
<img src="../../img/1.png" alt="1">
<img src="2.png" alt="2">
<img src="testimg/3.png" alt="3">
<img src="https://cdn.tmooc.cn/bsfile//courseImg///f93f25fba0a84f72be47f5058f84a655.png" alt="4">
</body>
</html>